package com.abl.javabasis._24_堆栈分析;

public class _Test {

    public static void main(String[] args) {

        String s1 = new String("123");
        String s2 = new String("123");

        String intern = "123";
        String intern1 = intern.intern();

        System.out.println( intern == intern1);
        long round = Math.round(-10.1);
        System.out.println(round);
        long round2 = Math.round(-1.1);
        System.out.println(round2);
    }

}
